Solid State Communications, volume 245, pages 31-35

Crystal structure and high-temperature properties of (Pr,Sr)2(Co,Mn)O4±δ with K2NiF4-type structure

Publication typeJournal Article
Publication date2016-11-01
Quartile SCImago
Q2
Quartile WOS
Q3
Impact factor2.1
ISSN00381098
Materials Chemistry
General Chemistry
Condensed Matter Physics
Abstract
Abstract Novel oxides PrSrCo1−yMnyO4±δ, 0.0≤y≤0.5 and Pr0.5Sr1.5Co1−yMnyO4±δ 0.3≤y≤0.5 with K2NiF4-type structure were synthesized. The crystal structure, oxygen content, thermal expansion and electrical conductivity of the obtained compounds were examined. A chemical titration showed that PrSrCo0.5Mn0.5O4±δ is slightly overstoichiometric (δ=0.03(2)), while Pr0.5Sr1.5Co0.5Mn0.5O4±δ is oxygen deficient (δ=−0.05(2)). Thermal expansion behavior was studied by both dilatometry and high-temperature X-ray powder diffraction in the temperature range of 298–1173 K in air. Pr0.5Sr1.5Co0.5Mn0.5O3.95(2) exhibited linear thermal expansion along the a- and c-axes over the studied temperature range with thermal expansion coefficients (TECs) were 17.5 ppm K−1 and 17.8 ppm K−1, respectively. For PrSrCo0.5Mn0.5O4.03(2) two regions (298–600 K and 600–1173 K) observed, where the TEC along the a-axis decreased from 12.7 ppm K−1 to 10.4 ppm K−1 whereas the TEC along the c-axis increased from 14.5 ppm K−1 to 26.7 ppm K−1. Both compounds demonstrated lower in comparison with undoped PrSrCoO4 values of electrical conductivity of 7 S/cm for PrSrCo0.5Mn0.5O4.03(2) and 23 S/cm for Pr0.5Sr1.5Co0.5Mn0.5O3.95(2) at 1173 K in air.

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Zharikova E. V. et al. Crystal structure and high-temperature properties of (Pr,Sr)2(Co,Mn)O4±δ with K2NiF4-type structure // Solid State Communications. 2016. Vol. 245. pp. 31-35.
GOST all authors (up to 50) Copy
Zharikova E. V., Rozova M. G., Kazakov S., Istomin S. Y., Lyskov N., Antipov E. V. Crystal structure and high-temperature properties of (Pr,Sr)2(Co,Mn)O4±δ with K2NiF4-type structure // Solid State Communications. 2016. Vol. 245. pp. 31-35.
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TY - JOUR
DO - 10.1016/j.ssc.2016.07.020
UR - https://doi.org/10.1016%2Fj.ssc.2016.07.020
TI - Crystal structure and high-temperature properties of (Pr,Sr)2(Co,Mn)O4±δ with K2NiF4-type structure
T2 - Solid State Communications
AU - Zharikova, E V
AU - Rozova, M. G.
AU - Kazakov, S.M.
AU - Istomin, Sergey Ya.
AU - Lyskov, Nikolay
AU - Antipov, Evgeny V.
PY - 2016
DA - 2016/11/01 00:00:00
PB - Elsevier
SP - 31-35
VL - 245
SN - 0038-1098
ER -
BibTex
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BibTex Copy
@article{2016_Zharikova,
author = {E V Zharikova and M. G. Rozova and S.M. Kazakov and Sergey Ya. Istomin and Nikolay Lyskov and Evgeny V. Antipov},
title = {Crystal structure and high-temperature properties of (Pr,Sr)2(Co,Mn)O4±δ with K2NiF4-type structure},
journal = {Solid State Communications},
year = {2016},
volume = {245},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016%2Fj.ssc.2016.07.020},
pages = {31--35},
doi = {10.1016/j.ssc.2016.07.020}
}
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